Results 61 to 70 of about 493,599 (265)

Expanding the DNA Nanotechnology Toolbox: Hierarchical Assembly and Self‐Sorting of DNA Tiles With Precisely Controlled Hydrophobic Behavior

open access: yesAngewandte Chemie, EarlyView.
DNA tile amphiphiles encode dual chemical information, directing nanostructure formation through base‐pairing and hydrophobic effects. Thermal annealing programs hierarchical assembly, with first‐formed interactions biasing the final morphology: short hydrophobic chain strands form DX‐tiles and then into stars, while long‐chain strands form SNAs and ...
Yihao Wu   +3 more
wiley   +2 more sources

Bistable Networks Enable Complex Shape Changes

open access: yesAdvanced Science, EarlyView.
Transition‐controlled metamaterials are networks of bistable mechanical memory that store local binary states and express them as global shape change. By decoupling low‐force programming from high‐force holding, a single lattice is reconfigured into distinct 2D profiles and 3D surfaces without continuous actuation, enabling reusable morphing materials ...
Sawyer Thomas, Jeffrey Lipton
wiley   +1 more source

pH‐Driven Actuation of Unmodified DNA Origami Rectangles

open access: yesAngewandte Chemie, EarlyView.
Unmodified DNA origami rectangles exhibit a reversible transition between planar and tubular states driven by near‐neutral pH changes. This behavior arises from crossover‐mediated mechanical coupling of overwound DNA and extends to dimers and nanoribbons, enabling the formation of nanotube architectures without added motifs or chemical modification ...
Diego A. Uehara   +4 more
wiley   +2 more sources

The surface design of clay tiles

open access: yes, 2002
This creative project is a brief study of clay tile surface decoration, using commercial 4" x 4" and 6" x 6" tiles, as well as handmade slab-rolled and slumped molded forms. The exploration of surface decoration was based on historical research.
Reichle-Toney, Karyn
core  

An Innervated Human Skin Equivalent that Electrically Encodes Mechanical and Thermal Stimuli

open access: yesAdvanced Science, EarlyView.
An innervated human skin equivalent is integrated with high‐density microelectrode arrays to reveal how engineered free nerve ending–like structures translate touch and temperature into electrical codes. Mechanical indentation and thermal stimulation engage the engineered somatosensory circuitry and evoke distinct firing and waveform signatures ...
Daniele Bellantoni   +6 more
wiley   +1 more source

Twelve six-inch square tiles

open access: yes, 1875
These blue tiles surprised me when I first discovered them. I did not know that Minton did blue as well as brown tiles. They are apparently exactly the same in design. Are the patterns here as crisp and clear as on the brown tiles? The titles are read in

core  

A Microenvironment‐Adaptive Scaffold Rejuvenates Peripheral Nerve Regeneration During Aging Via Dual Modulation of Ferroptotic Stimuli in Schwann Cells

open access: yesAdvanced Science, EarlyView.
(i) Aging impairs peripheral nerve regeneration via its dual ferroptosis‐mediated pathologies in senescent schwann cells. (ii) The composite nerve conduit is a symbiosis niche integrating microenvironment‐responsive nanoparticles (Ga‐PTAs) and maxillofacial‐derived mesenchymal stem cells (Mmscs).
Ning Zhan   +12 more
wiley   +1 more source

Clay tiles.

open access: yes, 1916
Light and dark clay tiles arranged in a pattern of interlocking ...

core  

Programmable Sequential 4D Actuation in Multistable Kirigami Metamaterials

open access: yesAdvanced Science, EarlyView.
This study presents a modular kirigami metamaterial framework enabling programmable multistability and sequential 4D actuation. By coupling geometry‐controlled multistability with material‐dependent recovery kinetics, spatiotemporal deformation can be precisely programmed.
Eui‐Hyun Kim   +3 more
wiley   +1 more source

Ethics Guidelines of the German Network for Forced Migration Studies [PDF]

open access: yes
The Ethics Guidelines of the German Network for Forced Migration Studies (Netzwerk Fluchtforschung e.V.) aim to support ethical research practices in Forced Migration Studies. The Guidelines place the respect for human dignity and safeguarding the rights
Zanker, F. (Franzisca)   +5 more
core   +1 more source

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